Elfin
Just a bit of additional information
The witness at the first baptism Francois Nicolas Vasseur was married 9 Aug 1792 St Marylebone London to a Margaret Janet Frost. A Marie Francoise Adelaide Vasseur and an Augustine Vasseur were both married in 1782, at St James Westminster. All 3 marriages West London rather than East, perhaps Jacques siblings?
Also Jacques enrolled his daughter Sarah, as a pupil at the Threadneedle Street Church's Charity School aged 7, Jan 1793 (His name is recorded on this record Anglicised as James Anthony Vasseur). Her birth date then would be more 1786, could not be as early as 1772 I would think.
Richard
Edit: Elfin I'm a bit puzzled as to where the 1772 date comes from Sarah, the age on the IGI Christening matches more or less with the School Record. These are the children as I have them:
Sarah Vasseur - 1787 Christchurch, Spitalfields
Jacques Antoine Vasseur - 1789 Threadneedle Street French Huguenot, London
Francis James Vasseur - 1791 St Matthew, Bethnal Green
Jean Henri Vasseur - 1794 Threadneedle Street French Huguenot, London
Augustus Ann Vasseur - 1796 St Matthew, Bethnal Green
James Anthony Vasseur - 1803 St Leonards, Shoreditch
Thomas William Vasseur - 1805 St Matthew, Bethnal Green
Mary Vasseur - 1807 St Leonards, Shoreditch
James Vasseur - b.1810, bap 1819, St Matthew Bethnal Green
The thought occurs, since he married a local girl, perhaps initaily they decided to baptise their children alternating between the Anglican Church, and French, to please both familys, a compromise? And then by 1800 with the French Church in serious decline anyway, gave up on this and settled with the local Anglican Churches.
Edit 2: Found Sarahs Threadneedle Street Charity School Admission Record which gives her date of Birth:
VASSEUR, Sarah ; d. of James Vasseur and Sarah — born 18 Sept., 1787— baptised. Christ Church, Midx., 7 Oct., 1787. Sponsors: G. Ashton, L. Mercier.